188 Last month, I sold the car which I had bought only a month ( ).
　　　① after　② before　③ later　④ ago

189 It is almost noon, but my father is ( ) in bed.
　　　① still　② already　③ just　④ yet

190 This English book is so difficult that I can ( ) understand it.
　　　① near　② hard　③ nearly　④ hardly

191 I hve to enter the gate before 10 p.m. ( ), I'll be locked out.
　　　① However　② Instead　③ Otherwise　④ Unless

192 We sent the refugee camp some clothes ( ) some food.
　　　① by far　② all the better　③ no more than　④ as well as

193 He arrived at the station ( ) time for the first train.
　　　① at　② by　③ in　④ before